This problem has been around since kernel 2.6.16, and I see it in2.6.23.1-10.fc7. It occurs in the ufs_check_page function of ufs/dir.cat the Espan test, which seems unnecessary for NextStep/OpenStepfiles systems. The following patch preserves the test for other filesystems and makes the mount useful for NextStep/OpenStep:(against the 2.6.23.1-10.fc7 source tree)